Ice Ages as History

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Science  23 Dec 2005:
Vol. 310, Issue 5756, pp. 1900
DOI: 10.1126/science.310.5756.1900e

“Anthropogenic climate change will basically produce another planet.… Earth won't have another ice age until humans go extinct.”

—James Hansen of NASA Goddard Institute for Space Studies in New York City on 6 December at the meeting of the American Geophysical Union in San Francisco.

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